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GB2279472B - Low drop-out regulator apparatus - Google Patents

Low drop-out regulator apparatus

Info

Publication number
GB2279472B
GB2279472B GB9311300A GB9311300A GB2279472B GB 2279472 B GB2279472 B GB 2279472B GB 9311300 A GB9311300 A GB 9311300A GB 9311300 A GB9311300 A GB 9311300A GB 2279472 B GB2279472 B GB 2279472B
Authority
GB
United Kingdom
Prior art keywords
low drop
regulator apparatus
out regulator
drop
low
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
GB9311300A
Other versions
GB9311300D0 (en
GB2279472A (en
Inventor
Michael William Dormer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
VTech Communications Ltd
Original Assignee
VTech Communications Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by VTech Communications Ltd filed Critical VTech Communications Ltd
Priority to GB9311300A priority Critical patent/GB2279472B/en
Publication of GB9311300D0 publication Critical patent/GB9311300D0/en
Priority to US08/252,344 priority patent/US5510697A/en
Priority to CA002124884A priority patent/CA2124884C/en
Publication of GB2279472A publication Critical patent/GB2279472A/en
Application granted granted Critical
Publication of GB2279472B publication Critical patent/GB2279472B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current 
    • G05F1/46—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC
    • G05F1/56—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current  wherein the variable actually regulated by the final control device is DC using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Continuous-Control Power Sources That Use Transistors (AREA)
GB9311300A 1993-06-02 1993-06-02 Low drop-out regulator apparatus Expired - Fee Related GB2279472B (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB9311300A GB2279472B (en) 1993-06-02 1993-06-02 Low drop-out regulator apparatus
US08/252,344 US5510697A (en) 1993-06-02 1994-06-01 Low drop-out voltage regulator apparatus
CA002124884A CA2124884C (en) 1993-06-02 1994-06-01 Low drop-out voltage regulator apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB9311300A GB2279472B (en) 1993-06-02 1993-06-02 Low drop-out regulator apparatus

Publications (3)

Publication Number Publication Date
GB9311300D0 GB9311300D0 (en) 1993-07-21
GB2279472A GB2279472A (en) 1995-01-04
GB2279472B true GB2279472B (en) 1997-07-23

Family

ID=10736453

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9311300A Expired - Fee Related GB2279472B (en) 1993-06-02 1993-06-02 Low drop-out regulator apparatus

Country Status (3)

Country Link
US (1) US5510697A (en)
CA (1) CA2124884C (en)
GB (1) GB2279472B (en)

Families Citing this family (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5736843A (en) * 1995-04-27 1998-04-07 Silicon Graphics, Inc. Efficient ultra low drop out power regulator
US5675241A (en) * 1995-07-06 1997-10-07 Texas Instruments Incorporated Voltage regulator with low drop out voltage
US5773965A (en) * 1995-10-24 1998-06-30 Rohm Co., Ltd. Switching power supply apparatus for converting a high DC voltage into a low DC voltage
US5886570A (en) * 1997-10-22 1999-03-23 Analog Devices Inc Inverter circuit biased to limit the maximum drive current to a following stage and method
SE520906C2 (en) * 1997-10-28 2003-09-09 Ericsson Telefon Ab L M Voltage regulator with a very low drop-out voltage
US6198266B1 (en) 1999-10-13 2001-03-06 National Semiconductor Corporation Low dropout voltage reference
US6218822B1 (en) 1999-10-13 2001-04-17 National Semiconductor Corporation CMOS voltage reference with post-assembly curvature trim
US6329804B1 (en) 1999-10-13 2001-12-11 National Semiconductor Corporation Slope and level trim DAC for voltage reference
US6201379B1 (en) 1999-10-13 2001-03-13 National Semiconductor Corporation CMOS voltage reference with a nulling amplifier
JP3666383B2 (en) * 2000-11-13 2005-06-29 株式会社デンソー Voltage regulator
GB2371376B (en) * 2001-01-17 2004-07-28 Nec Technologies Battery operated equipment
US6597592B2 (en) * 2001-10-03 2003-07-22 Bruce W. Carsten Apparatus and method for turning off BJT used as controlled rectifier
US7504806B2 (en) * 2005-10-21 2009-03-17 Schweitzer Engineering Laboratories, Inc. Apparatus and methods for controlling operation of a single-phase voltage regulator in a three-phase power system
US7271572B2 (en) * 2005-10-24 2007-09-18 Schweitzer Engineering Laboratories, Inc. Apparatus and methods for providing a voltage adjustment for single-phase voltage regulator operation in a three-phase power system
US8427131B2 (en) * 2009-06-12 2013-04-23 Schweitzer Engineering Laboratories Inc Voltage regulation at a remote location using measurements from a remote metering device
US9256232B2 (en) 2009-06-12 2016-02-09 Schweitzer Engineering Laboratories, Inc. Voltage regulation using multiple voltage regulator controllers
US8476874B2 (en) 2009-10-13 2013-07-02 Schweitzer Engineering Laboratories, Inc Systems and methods for synchronized control of electrical power system voltage profiles
CN103427675A (en) * 2012-05-21 2013-12-04 施耐德电气东南亚(总部)有限公司 Converter for converting alternating current into direct current
CN103427683A (en) * 2013-08-30 2013-12-04 昆山奥德鲁自动化技术有限公司 Voltage-stabilizing power circuit
CN103713679B (en) * 2013-12-17 2016-04-13 深圳市新国都技术股份有限公司 A kind of LDO circuit based on discrete component

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126951A (en) * 1965-02-08 1968-09-11 Comp Generale Electricite A voltage regulated supply circuit
US3916294A (en) * 1974-03-21 1975-10-28 Magnavox Co Cable television substation regulated power supply with ripple suppression
GB1532844A (en) * 1975-10-09 1978-11-22 Indesit Stabilized supply circuit
WO1983001351A1 (en) * 1981-10-02 1983-04-14 Ncr Co Voltage regulation and battery dissipation limiter circuit
US4479085A (en) * 1980-12-19 1984-10-23 Iwasaki Tsushinki Kabushiki Kaisha Power source circuit

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2536921A1 (en) * 1982-11-30 1984-06-01 Thomson Csf LOW WASTE VOLTAGE REGULATOR
US4560918A (en) * 1984-04-02 1985-12-24 Rca Corporation High-efficiency, low-voltage-drop series regulator using as its pass element an enhancement-mode FET with boosted gate voltage
US4792747A (en) * 1987-07-01 1988-12-20 Texas Instruments Incorporated Low voltage dropout regulator
US4928056A (en) * 1988-10-06 1990-05-22 National Semiconductor Corporation Stabilized low dropout voltage regulator circuit
IT1250301B (en) * 1991-09-09 1995-04-07 Sgs Thomson Microelectronics LOW FALL VOLTAGE REGULATOR.
DE69213224T2 (en) * 1992-06-25 1997-02-20 Sgs Thomson Microelectronics Programmable output voltage regulator

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1126951A (en) * 1965-02-08 1968-09-11 Comp Generale Electricite A voltage regulated supply circuit
US3916294A (en) * 1974-03-21 1975-10-28 Magnavox Co Cable television substation regulated power supply with ripple suppression
GB1532844A (en) * 1975-10-09 1978-11-22 Indesit Stabilized supply circuit
US4479085A (en) * 1980-12-19 1984-10-23 Iwasaki Tsushinki Kabushiki Kaisha Power source circuit
WO1983001351A1 (en) * 1981-10-02 1983-04-14 Ncr Co Voltage regulation and battery dissipation limiter circuit

Also Published As

Publication number Publication date
GB9311300D0 (en) 1993-07-21
US5510697A (en) 1996-04-23
CA2124884C (en) 2001-01-23
GB2279472A (en) 1995-01-04
CA2124884A1 (en) 1994-12-03

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20090602